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NRF52820-QDAA-R Datasheet(PDF) 24 Page - Nordic Semiconductor

No. de pieza NRF52820-QDAA-R
Descripción Electrónicos  nRF52820
PDF  437 Pages
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Fabricante Electrónico  NORDIC [Nordic Semiconductor]
Página de inicio  https://www.nordicsemi.com/
Logo NORDIC - Nordic Semiconductor

NRF52820-QDAA-R Datasheet(HTML) 24 Page - Nordic Semiconductor

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Core components
Bit number
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
ID
A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A
Reset 0x00000000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ID
Access
Field
Value ID
Value
Description
A
W ERASEPAGEPARTIAL
Register for starting partial erase of a page in code area
The value is the address to the page to be partially erased
(address of the first word in page). The erase must be
enabled using CONFIG.WEN before every erase page partial
and disabled using CONFIG.WEN after every erase page
partial. Attempts to erase pages that are outside the code
area may result in undesirable behavior, e.g. the wrong
page may be erased.
4.3.9.10 ERASEPAGEPARTIALCFG
Address offset: 0x51C
Register for partial erase configuration
Bit number
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
ID
A A A A A A A
Reset 0x0000000A
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0
ID
Access
Field
Value ID
Value
Description
A
RW DURATION
Duration of the partial erase in milliseconds
The user must ensure that the total erase time is long
enough for a complete erase of the flash page.
4.3.10 Electrical specification
4.3.10.1 Flash programming
Symbol
Description
Min.
Typ.
Max.
Units
nWRITE
Number of times a 32-bit word can be written before erase
2
nENDURANCE
Erase cycles per page
10000
tWRITE
Time to write one 32-bit word
42.51
µs
tERASEPAGE
Time to erase one page
87.51
ms
tERASEALL
Time to erase all flash
1731
ms
tERASEPAGEPARTIAL,acc Accuracy of the partial page erase duration. Total
execution time for one partial page erase is defined as
ERASEPAGEPARTIALCFG * tERASEPAGEPARTIAL,acc.
1.091
4.4 FICR — Factory information configuration registers
Factory information configuration registers (FICR) are pre-programmed in factory and cannot be erased by
the user. These registers contain chip-specific information and configuration.
1 Applies when HFXO is used. Timing varies according to HFINT accuracy when HFINT is used.
4463_156 v1.0
24



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